A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures (1848)
Quekett, John, 1815-1861 · London, H. Bailliere · leaf 170
sents a short piece of brass tube, b aglass prism connected by screws to thetube a by two supports c. The tube ismade to slide upon the end of the con-denser, and to turn upon it in such a man-ner that, in whatever position the lamp orwhite cloud may be, the prism may beadjusted to it; the… … 130 PRACTICAL TREATISE ON THE MICROSCOPE. plane mirror: the quantity of light is greater, and all testobjects in which delicate markings exist may be shown tothe best advantage; in consequence of some of the rays beingtransmitted whilst others are reflected, the shadow of themarkings will be more…
Microscopy
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